Concrete block.



C. A. BUSKIRK. CONCRETE BLOCK. APPLICATION FILED JUNE 2, 1909.

gg wg, Patented Mar. 15, 1910.

To all whom tramp concern i srnrnis rnfrsr rnrrcn I cnnnnncn' A. nusmn, or en; noprsgjnrsscnnrg ceases.

Be it known that 1, ex mines 'A BUS KIRK, citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain. new and useful Improvements in Concrete Blocks, ofwhich the fol lowing is a specification.

This invention relates-to artificial stone, bricks or blocks, and has for its object to provide a brick or block formed of mating sections connected by tie plates so that when the blocks are laideinto a wall, the latter will be formed with a 'vertical air chamber or fiue,thus to revent moisture on the outer face of the wal from p netrating the blocks and wetting or other-wigs injuring the plaster. 1

.- A further object of theinvention isto pro vide means for maintaining the block or brick sections in proper aced relation, and

7 means for centering the. locks or bricks in one course with respect to bricks in an adj acent course. p

A further object is toinsure proper bonding of the blocksb forming the tie plates the blocks or with perforations a apted to-receive vertical pins or studs, which latter are positioned in suitable recesses in the blocks when laid into a wall. A still further object of the invention is generally to improve this class of devices so as to increase their utility, durability and.

eificiency.

Further ob'ect-s and" advantages will ap pear in the ollowin description, it being understood that various changes in form, proportions, and minor details of construc- 'tion may be resorted to within the scope of the appended claims.

. For a full understanding of the invention and the merits thereof and also to acquire a knowledge of the details of construction and the means for efiect-ing the result, reference is to be had to the'i'ollowing description'and accompanying drawings, in which:

Figure 1 is a perspective View of a portion of a wall formed of artificial stone, bricks or blocks constructed in accordance with m invention; Fig. 2 is a perspective view 0 one of the bricks or blocks detached; Fig. 3 is a Vertical sectional View of the wall; Fig. 4 is a top plan View of theqwall illustrating a slightly difiercnt form of the invention. Fig. 5 is a detail perspective View of the tie able material.

compare spoon -.J= Specification of Letters recent. Patented Mar. r52, with; a lication and June a, icon. semi we. acacia.

plate detached; Fig. 6 isa similar 39% the spacing-block detached. 7

Corresponding and like parts are referred to in the -followin description and indicated in all the views 0 the drawings by the same reference characters. f v

The brick or blockforming the subject matter of the present invention comprises mating sections 5 and 6, each preferably rectangular inshape as shown, and formed of cement, concrete, terra-cotta, or other suit- The front section 6 is preferably of less width than the rear section 5 and may 'be' molded or otherwise formed with an ornamental face in imitation of cut or chipped rock so as to impart an attractive ap earance to the wall, and in some cases this front section may be formed of clay and therea'r section of concrete.

' Formed in the upper and lower longitudinal edges of the block sections 5 and 6, are

seating recesses 7 and communicating with said seating recesses are shallow depressions 8 for the reception of tie plates 9. The recesses 7 are positioned near the inner faces ofthe'block sections, while the depressions '8 extend through said inner faces. The, tie plates 9 are. referably formed of fiat strips of zinc or at er suitable material, the oppoerforated at 10 for pins .11. The-rear walls of the depressions 8 terminate short of the outer faces of the block sections so that when the tie plates 9 are positioned in said depressions and the blocks laid into a wall, said tie plates will be entirely concealed. The tie plates 9 serve to maintain the block sections 5 and 6 in spaced parallel relation to form an intermediat e air chamber or compartment 13 so that when the blocks or bricks are laid into a wall, the latter will be formed with a vertical air chamber or flue extending the entire height of the wall thus to permit the circulation of air throughout the entire height and length of the wall, and prevent moisture deposited on the outer faces of the bricks or blocks from penetrating the wall and wetting or otherwise injnringthe plaster on the inner face of said wall. In order to insure the proper spaced relation 01 the bricks or blocks, some of the tie plates are formed with spacing members or blocks 14 preferthe bricks or blocks of the several courses, arranged to break joint.

After the first course of the wall is laid, the bonding pins 11 are positioned in the recesses 7 and the perforated ends of the tie plates 9 passed over the adjacent ends of the bonding pins 11 and forced downwardly within the seating depressions 8. The bricks or blocks of the next succeeding course are then positioned on the blocks of the previously laid course with the recesses 7 in registration with the projecting ends of the bonding pins 11,-it being of course, understood that prior to laying the second course of bricks or blocks the usual layer of mortar will be spread thereon. The block sections forming the side walls of a building are preferably laid opposite each other with their end portions in alinement, while the bricks or blocks at the corners of the wall, are disposed one'slightly in advance of the other, as best shown in Fig. 3 of the drawings, so as to permit the formation of said corners without the necessity of breaking or otherwise mutilating the blocks.

By formingthe upper and lower longitudinal edges of the block sections with the depressions 8, any number of tie plates 9 may be positioned in said depressions in ordcr to reinforce and strengthen the wall. By making the blocks or bricks in separate sections and bonding said sections after the same have been laid into a wall, the construction of the wall is materially facilitated, while by spacing said sections apart in themanner set forth, the formation of mold or moisture on the inner face of the wall is effectually prevented.

It will, of course, be understood that the bricks or blocks may be made in different sizes and shapes and formed of cement, terra-cotta, or other material found suitable or desirable for this purpose.

Having thus described the invention, what is claimed as new is:

1. A wall formed of a plurality of blocks laidin superposed courses and arranged to break joint, said blocks being each formed of mating sections having their upper and -lower longitudinal edges provided with spaced seating recesses, there being transverse depressions formed in the block sections at said recesses and opening at the inner faces thereof, flat tie plates seated in said depressions and having their exposed faces disposed flush with the ad'acent longitudinal edges of the block an pierced by different widths having their upper and lower longitudinal edges formed with seatmg recesses and provided with transverse depressions communicating with said seating recesses and opening through the inner faces of the block sections, the outer walls of the depressions being spaced from the exposed faces of the block sections to form stop shoulders, flat tie plates connecting the several block sections and having their outer ends bearing against said stop shoulders and provlde with perforations adapted to register with vthe recesses in the adjacent block sections and their intermediate portions provided with depending spacing blocks adapted to bear against the inner faces of said block sections, and pins seated in the recesses in the mating sections of the blocks in one course of the wall and projecting through the perforations in the tie plates for engagement with the seating 'resions and disposed flush with the adjacentlongitudinal edges of the block sections, said tie plates having perforations formed therein and registering with the seating recesses in said block sections, pins extending through the perforations in the plates and seated in the adjacent recesses, and spacing blocks depending from the intermediate portions of the tie plates and adapted to bear against the inner faces of the block sections, thereby to maintain the latter in spaced relation to each other.

In .testimony whereof I affix my signature in presence of two witnesses.

CLARENCE A. BUSKIRK. [L. s.] Witnesses:

F. E. EATON, C. A. LIMBnIs. 

